Which of the following $3 d -m e t a l$ ion will give the lowest enthalpy of hydration $(\Delta_{ hyd } H )$ when dissolved in water?
Which of the following $3 d -m e t a l$ ion will give the lowest enthalpy of hydration $(\Delta_{ hyd } H )$ when dissolved in water?
- [JEE MAIN 2022]
- A
$Cr ^{2+}$
- B
$Mn ^{2+}$
- C
$Fe ^{2+}$
- D
$Co ^{2+}$
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- [AIIMS 2002]
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